ChemElectroChem最新文献

Front Cover: Synergetic Interlayer in Li-S Batteries: Polysulfide-Impeding Effect of Conductive Carbon Cloth Supporting Topological-Phase Bi2Se3 (ChemElectroChem 9/2025) 前盖：Li-S电池中的协同中间层：导电碳布支持拓扑相Bi2Se3的多硫化物阻碍效应（ChemElectroChem 9/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-05-05 DOI: 10.1002/celc.202580901

Heng Wang, Huichao Dong, Ting Kan, Hewei Luo, Ji Yan, Hirofumi Yoshikawa

引用次数: 0

Front Cover: Advancements in Electrocatalysts for Oxygen Evolution Reaction: A Review of Catalysts in Acidic Media (ChemElectroChem 8/2025) 封面：氧进化反应电催化剂的进展：酸性介质中的催化剂综述（ChemElectroChem 8/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-14 DOI: 10.1002/celc.202580801

Gege Su, Jiayi Yang, Jie Yin

引用次数: 0

Front Cover: Enhanced Performance of Photocatalytic CO2 Reduction Using Cu@Graphene Nanoparticle-Decorated Co3O4 Nanoneedles (ChemElectroChem 7/2025) 封面：使用Cu@Graphene纳米颗粒修饰的Co3O4纳米针增强光催化CO2还原性能（ChemElectroChem 7/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-03 DOI: 10.1002/celc.202580701

Yi-Xuan Lin, Dung-Sheng Tsai, Zi-Yu Chen, Chuan-Pei Lee

引用次数: 0

pH Dependence of Noble Metals Dissolution: Ruthenium 贵金属溶解的pH依赖性：钌

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-03 DOI: 10.1002/celc.202400651

Mária Minichová, Tatiana Priamushko, Matej Zlatar, Karl J. J. Mayrhofer, Serhiy Cherevko

{"title":"pH Dependence of Noble Metals Dissolution: Ruthenium","authors":"Mária Minichová, Tatiana Priamushko, Matej Zlatar, Karl J. J. Mayrhofer, Serhiy Cherevko","doi":"10.1002/celc.202400651","DOIUrl":"https://doi.org/10.1002/celc.202400651","url":null,"abstract":"Ruthenium (Ru) or Ru-based catalysts are widely used in various electrochemical applications such as biosensors, ammonia synthesis, CO2 reduction, electrolyzers, or fuel cells, operating at different conditions. While the activity of these catalysts is widely studied, works addressing stability are less common, especially in neutral or alkaline environments. Therefore, we evaluate a real-time potential-dependent dissolution of polycrystalline Ru via scanning flow cell coupled to inductively coupled plasma mass spectrometry in acidic, alkaline, and phosphate buffer electrolytes using relevant potential ranges. On top of the fundamental understanding of Ru's dissolution, a particular focus lies on oxygen evolution reaction (OER) due to its importance in various electrochemical applications. We show that the dissolution behavior of Ru during dynamic operation is well in line with the thermodynamic predictions (except dissolution due to Ru2+ formation) and unique compared to other noble metals (Pt, Au, Ir). While the dissolution of polycrystalline Ru is the highest in alkaline pH at the onset of OER (1.4 VRHE), no stability issues are visible at potentials up to 0.85 VRHE at all pHs. This work establishes a stability baseline for researchers implementing Ru-based catalysts.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400651","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-Dimensional Titanium Disulfide Nanosheets for Enhanced Capacity of Zinc-Ion Capacitors 增强锌离子电容器容量的二维二硫化钛纳米片

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-28 DOI: 10.1002/celc.202400663

Sumeyye Kandur Baglicakoglu, Sena Oz, Ali Deniz Ucar, Yusuf Kocak, Mete Batuhan Durukan, Emrah Ozensoy, Husnu Emrah Unalan

{"title":"Two-Dimensional Titanium Disulfide Nanosheets for Enhanced Capacity of Zinc-Ion Capacitors","authors":"Sumeyye Kandur Baglicakoglu, Sena Oz, Ali Deniz Ucar, Yusuf Kocak, Mete Batuhan Durukan, Emrah Ozensoy, Husnu Emrah Unalan","doi":"10.1002/celc.202400663","DOIUrl":"https://doi.org/10.1002/celc.202400663","url":null,"abstract":"Capacitors offer high power density, superior cycle stability, and fast charging, making them highly promising for energy storage. However, their energy density needs to be improved. Due to zinc’ s abundance, low cost, high capacity, and stability, aqueous zinc-ion capacitors (ZnCs) have garnered significant attention. ZnCs face challenges such as rapid capacity decrease and reduced lifespan due to strong electrostatic interactions, electrode material dissolution, and sluggish ionic diffusion. Bulk titanium disulfide (TiS2) has been investigated as an electrode material to overcome these disadvantages, but the effects of its two-dimensional (2D) structure have yet to be discovered. With this work, bulk TiS2 is exfoliated into semi-metallic 2D-TiS2 nanosheets using organolithium chemistry, optimizing it as a cathode material for ZnCs to enhance energy density. The 2D-TiS2 exhibited a specific capacitance of 214.3 F g−1 at 0.1 mV s−1 scan rate and a specific capacity of 116.4 mAh g−1 at a current density of 0.1 A g−1, while significantly outperforming bulk TiS2. This work highlights the potential of 2D-TiS2 to enhance the energy density of ZnCs through improved electrical conductivity and improved accessibility of ions through nanosheets, offering a new class of cathodes for enhanced energy storage.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400663","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transition-Metal Dependence of Anion Redox Reversibility in Amorphous Electrodes 非晶电极中阴离子氧化还原可逆性的过渡金属依赖性

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-26 DOI: 10.1002/celc.202400545

Naoto Tanibata, Suzuno Akatsuka, Misato Koga, Yumika Yokoyama, Hayami Takeda, Masanobu Nakayama

{"title":"Transition-Metal Dependence of Anion Redox Reversibility in Amorphous Electrodes","authors":"Naoto Tanibata, Suzuno Akatsuka, Misato Koga, Yumika Yokoyama, Hayami Takeda, Masanobu Nakayama","doi":"10.1002/celc.202400545","DOIUrl":"https://doi.org/10.1002/celc.202400545","url":null,"abstract":"Anion redox reactions can considerably enhance battery capacity; however, they face challenges, such as phase separation and slow kinetics due to large structural changes. In crystalline oxide materials, phase separation of the anionic component is governed by the positional relationship between the energy levels of the orbitals of the anionic component and unoccupied orbitals of the constituent transition metals. However, in addition to these elemental parameters, structural constraints are important for crystalline materials. Previously, we reported that the slow kinetics of the anion redox reactions in Na3FeS3 can be improved through amorphization, which increases the structural degrees of freedom. In this study, we examined amorphous Na3CoS3, in which the Fe in Na3FeS3 was replaced by Co, to investigate the transition metal dependence of the anion redox reversibility in amorphous compounds with large structural degrees of freedom. The reversibility was reduced by replacing Fe with Co owing to the phase separation caused by the sulfur multimer formation. First-principles calculations revealed that multimer formation was driven by the transfer of electrons from dimeric sulfur to the unoccupied orbital of Co. The results confirm the transition-metal selection guidelines for the reversibility of anion redox reactions, even for amorphous compounds with few structural constraints.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400545","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Stable and Conductive 1,3-Dioxolane/Hydrocarbon Based Electrolyte Solvent for Advanced Lithium-Sulfur Batteries 高稳定性和导电性的1,3-二恶烷/碳氢化合物基电解质溶剂用于先进的锂硫电池

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-26 DOI: 10.1002/celc.202400588

Faiz Ahmed, Defu Li, Gao Liu

{"title":"Highly Stable and Conductive 1,3-Dioxolane/Hydrocarbon Based Electrolyte Solvent for Advanced Lithium-Sulfur Batteries","authors":"Faiz Ahmed, Defu Li, Gao Liu","doi":"10.1002/celc.202400588","DOIUrl":"https://doi.org/10.1002/celc.202400588","url":null,"abstract":"Developing effective electrolytes is crucial for boosting the performance of Lithium-Sulfur (LiS) rechargeable battery. Recent improvements in electrolyte formulations have enhanced cyclability by increasing electrochemical stability at the electrode interfaces. However, achieving both high ionic conductivity (σ) and stability at these interfaces simultaneously remains a significant challenge. In this study, we utilized a strategy to suppress polysulfide dissolution by employing a mixture of 1,3-dioxolane (DOL) and hydrocarbon solvents with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) electrolyte salt. Compared to the conventional electrolyte solution, which is 1 M LiTFSI salt in a 50/50 vol % mixture of DOL and dimethoxy ethane (DME), the LiTFSI electrolyte with DOL/hydrocarbon solvents demonstrate better cycling stability, compatibility with the Li-metal anode, and a high specific discharge capacity (Csp). Among the various DOL/hydrocarbon and LiTFSI electrolyte salts, the combination of DOL and n-hexane, a linear hydrocarbon, with LiTFSI electrolyte salt, (DnH40LiTFSI) exhibits remarkable σ (6.5×10−3 S/cm at 30 °C), compatibility with the Li-metal anode, an initial Csp of ca. 1264 mAh/g, cycling stability (Csp and Coulombic efficiency are 811 mAh/g and 98.09 % after 120 cycles) at 0.1 C by forming a good protective layer on the Li-metal surface and preventing polysulfide dissolution.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400588","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the Selectivity and Confinement of the Cu(II)-Mediated Chan-Lam Coupling for Use in Building Point-of-Care Diagnostics 增强Cu（II）介导的Chan-Lam偶联的选择性和约束，用于建立即时诊断

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-26 DOI: 10.1002/celc.202400642

Yu-Chia Chang, Prof. Kevin D. Moeller

{"title":"Enhancing the Selectivity and Confinement of the Cu(II)-Mediated Chan-Lam Coupling for Use in Building Point-of-Care Diagnostics","authors":"Yu-Chia Chang, Prof. Kevin D. Moeller","doi":"10.1002/celc.202400642","DOIUrl":"https://doi.org/10.1002/celc.202400642","url":null,"abstract":"The Cu(II)-mediated Chan-Lam coupling reaction offers several benefits for developing point-of-care detection devices on microelectrode arrays. However, achieving selectivity on borate ester-based polymer surfaces has proven difficult due to background reactions. Fluorescence-based studies were conducted using fluorescently labeled acetylene nucleophiles. Initial experiments revealed significant background fluorescence across the electrode array, indicating selectivity issues. Further investigation uncovered significant background reactions occurring even without copper. To address this, a strategy utilizing an arylbromide-based polymer was developed, enhancing reaction selectivity by minimizing background non-specific reactions. Exploration into the confinement mechanism revealed the role of acetylene in forming dimers, facilitating rapid consumption of Cu(II) reagents that escaped from the specific electrodes used. These findings offer a way to construct devices for the multiplex point-of-care detection of metabolites, improving performance and accuracy in diagnostic devices.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400642","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Durability of Pt-Alloy Catalyst for Heavy-Duty Polymer Electrolyte Fuel Cell Applications under Realistic Conditions 重型聚合物电解质燃料电池用pt合金催化剂的耐久性研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-25 DOI: 10.1002/celc.202400643

Celine H. Chen, Matthew Coats, Florian Chabot, Yu Morimoto, Plamen Atanassov, Nobumichi Tamura, Jonathan Braaten, Björn M. Stühmeier, Christina Johnston, Svitlana Pylypenko, Lei Cheng, Iryna V. Zenyuk

{"title":"Durability of Pt-Alloy Catalyst for Heavy-Duty Polymer Electrolyte Fuel Cell Applications under Realistic Conditions","authors":"Celine H. Chen, Matthew Coats, Florian Chabot, Yu Morimoto, Plamen Atanassov, Nobumichi Tamura, Jonathan Braaten, Björn M. Stühmeier, Christina Johnston, Svitlana Pylypenko, Lei Cheng, Iryna V. Zenyuk","doi":"10.1002/celc.202400643","DOIUrl":"https://doi.org/10.1002/celc.202400643","url":null,"abstract":"As an emerging technology, polymer electrolyte fuel cells (PEFCs) powered by clean hydrogen can be a great source of renewable power generation with flexible utilization because of high gravimetric energy density of hydrogen. To be used in real-life applications, PEFCs need to maintain their performance for long-term use under a wide range of conditions. Therefore, it's important to understand the degradation of the PEFC under protocols that are closely related to the catalyst lifetime. Alloying Pt with transitional metal improves catalyst activity. It is also crucial to understand Pt alloys degradation mechanisms to improve their durability. To study durability of Pt alloys, accelerated stress tests (ASTs) are performed on Pt−Co catalyst supported on two types of carbon. Two different AST protocols were being studied: Membrane Electrolyte Assembly (MEA) AST based on the protocol introduced by the Million Mile Fuel Cell Truck consortium in 2023 and Catalyst AST, adopted from the U.S. Department of Energy (DoE).","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400643","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Iridium Oxide Network on Non-conductive TiO2 Support as a Catalyst for Oxygen Evolution Reaction 非导电TiO2载体上氧化铱网络作为析氧反应催化剂的研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-03-25 DOI: 10.1002/celc.202400625

Shabnam Zargarian, Camille Roiron, Giovanni Ferro, Plamen Atanassov

{"title":"Iridium Oxide Network on Non-conductive TiO2 Support as a Catalyst for Oxygen Evolution Reaction","authors":"Shabnam Zargarian, Camille Roiron, Giovanni Ferro, Plamen Atanassov","doi":"10.1002/celc.202400625","DOIUrl":"https://doi.org/10.1002/celc.202400625","url":null,"abstract":"Successful deployment of hydrogen technologies relies on converting electricity from renewable energy sources into hydrogen. Proton exchange membrane electrolyzers are currently the technology of choice for this transformation. These devices use electricity to split water molecules into hydrogen and oxygen. To build membrane electrode assemblies with low iridium loading, while maintaining good in-plane conductivity, an extended network of iridium oxide is required. To this effect, we synthesize IrO2 catalysts on a non-conductive titanium dioxide anatase support. The iridium oxide particles obtained are well dispersed on the surface of the support. Furthermore, at the optimal iridium oxide loading, a network of relatively small iridium oxide particles covers the surface of the support. Increasing the iridium oxide loading beyond this optimum does not bring any appreciable increase in connectivity and decreases the surface-to-mass ratio of iridium oxide, which is detrimental to the mass activity of the material. The synthesis method presented herein leads to the formation of an iridium oxide extended network that grants electrical conductivity to the material despite the high resistivity of the titanium dioxide anatase support. The result is a catalyst that enjoys the chemical stability of anatase but is also conductive and highly active for the OER.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400625","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0